TB 9-5120-202-24
NOTE
Torque Wrench, Audible Signal, Tee Handle Preset:
(fig. 10). Note torque value setting on handle of TI. Gradually
apply rotational force on handle of TI until sharp audible snap
is heard. Stop applying force at this point.
NOTE
Torque Wrench, Audible Signal, Tee Handle Adjustable:
(fig. 11). Gradually apply rotational force on handle of TI until
sharp audible snap is heard. Stop applying force at this point.
NOTE
Torque Wrench, Audible, Preset Torque: (fig. 12). Note
torque value setting on handle of TI.
Gradually apply
perpendicular force on handle of TI until audible (snap) signal
is heard. Stop applying force at this point.
NOTE
Clutch-Type Torque Screwdrivers: Turn TI in clockwise
direction and observe that torque cell indication remains at 0.
Remove TI from torque cell. Insert TI into appropriate torque
cell, using adapter (part of tool set) as required.
Set
screwdriver for cardinal point in (1) above. Gradually apply
rotational force on handle of TI until clutch automatically
releases. Stop applying force at this point.
NOTE
Direct-Reading Torque Screwdrivers: (fig. 13). Perform 9
below.
(7) Note reading on indicator then slowly release force. Remove TI from torque cell.
Press the
soft key to reset the force/torque indicator (snap wrenches only). Press the
→0← soft key to zero force/torque indicator.
(8) Repeat technique of (4) and (5) above two more times. Compute average reading
of indications in (5) above. If average reading is not within limits specified in table 1 for TI
being calibrated, perform b below.
(9) Repeat technique of (4) through (6) above at TI cardinal points of 60 and 100
percent of full-scale.
b. Adjustments. Adjust in accordance with manufacturer's instruction manual.
NOTE
Some torque wrenches do not have adjustments.
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